Equivalent Circuit Modeling of a Lumped-element Loaded Metasurface under Arbitrary Incidence and Polarization

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Hauptverfasser: Nousiou, Athanasios, Liaskos, Christos K., Kantartzis, Nikolaos V., Pitilakis, Alexandros
Format: Preprint
Veröffentlicht: 2025
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author Nousiou, Athanasios
Liaskos, Christos K.
Kantartzis, Nikolaos V.
Pitilakis, Alexandros
author_facet Nousiou, Athanasios
Liaskos, Christos K.
Kantartzis, Nikolaos V.
Pitilakis, Alexandros
contents In this work we develop a simple equivalent circuit model (ECM) that predicts the spectral response of a lumped-element loaded single patterned layer reflective metasurface. The proposed ECM maintains accuracy across varying design parameters including dual-polarization, arbitrary obliquity and azimuthal rotation of incidence plane, as well as physical dimensions of the lumped elements. Our approach is built incrementally, starting from an elementary unit cell which is extended to a 2-by-2 arrangement that allows for multifunctionality and reconfigurability in both polarizations, independently. These capabilities facilitate the design of tunable holographic metasurfaces which can implement reconfigurable intelligent surfaces (RIS) for advanced wireless communication systems. We evaluate the limitations and accuracy of the proposed ECM with full-wave simulations (FWS), which evidence robustness up to 45 degrees and thus highlight its aptitude as a rapid design tool or a guide for FWS-based optimization.
format Preprint
id arxiv_https___arxiv_org_abs_2504_06501
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Equivalent Circuit Modeling of a Lumped-element Loaded Metasurface under Arbitrary Incidence and Polarization
Nousiou, Athanasios
Liaskos, Christos K.
Kantartzis, Nikolaos V.
Pitilakis, Alexandros
Optics
Applied Physics
In this work we develop a simple equivalent circuit model (ECM) that predicts the spectral response of a lumped-element loaded single patterned layer reflective metasurface. The proposed ECM maintains accuracy across varying design parameters including dual-polarization, arbitrary obliquity and azimuthal rotation of incidence plane, as well as physical dimensions of the lumped elements. Our approach is built incrementally, starting from an elementary unit cell which is extended to a 2-by-2 arrangement that allows for multifunctionality and reconfigurability in both polarizations, independently. These capabilities facilitate the design of tunable holographic metasurfaces which can implement reconfigurable intelligent surfaces (RIS) for advanced wireless communication systems. We evaluate the limitations and accuracy of the proposed ECM with full-wave simulations (FWS), which evidence robustness up to 45 degrees and thus highlight its aptitude as a rapid design tool or a guide for FWS-based optimization.
title Equivalent Circuit Modeling of a Lumped-element Loaded Metasurface under Arbitrary Incidence and Polarization
topic Optics
Applied Physics
url https://arxiv.org/abs/2504.06501